Spiderweb lighting structure



FIG. 1 is a front elevation view of a spiderweb lighting structure, showing my new design;

FIG. 2 is a left side elevation view;

FIG. 3 is a right side elevation view;

FIG. 4 is a top view;

FIG. 5 is a bottom view;

FIG. 6 is a rear elevation view; and,

FIG. 7 is a rear perspective view. 

The ornamental design for a spiderweb lighting structure, as shown and described. 